package org.csu.canteen.service;

import org.csu.canteen.entity.CartItem;

import java.util.List;

//全部已检查
public interface CartItemService {
    public  void insertItem(String username, String itemid, int number);
    public void insertItem(CartItem cartItem,String username);
    public List<CartItem> getCartByUsername(String username);

    public void removeItem(CartItem cartItem);




}
